Mesabi Trust
US ˙ NYSE ˙ US5906721015

SecurityMSB / Mesabi Trust
InstitutionNbc Securities, Inc.
Latest Disclosed Ownership30,742 shares
Latest Disclosed Value $ 968,373
Nbc Securities, Inc. reports 9.43% decrease in ownership of MSB / Mesabi Trust

On April 14, 2026 - Nbc Securities, Inc. filed a 13F-HR form disclosing ownership of 30,742 shares of Mesabi Trust (US:MSB) valued at $968,373 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 33,942 shares of Mesabi Trust. This represents a change in shares of -9.43% during the quarter. The current value of the position is $755,946 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-14 2026-03-31 13F MESABI TRUST CBI COMMON STK 590672101 30,742 -3,200 -9.43 968 -25.94 0.0716
2026-01-29 2025-12-31 13F MESABITRUSTCBI COMMONSTK 590672101 33,942 0 0.00 1,307 31.62 0.0980
2025-11-14 2025-09-30 13F MESABI TRUST CBI COMMON STK 590672101 33,942 0 0.00 993 0.0764
2025-07-08 2025-06-30 13F MESABI TRUST CBI COMMON STK 590672101 33,942 -120 -0.35 1 0.0663
2025-04-09 2025-03-31 13F MESABI TR CO CTF BEN INT Stock 590672101 34,062 34,032 113,440.00 1 0.0790
2025-01-22 2024-12-31 13F MESABI TR CO CTF BEN INT Stock 590672101 30 -30,865 -99.90 1 0.0782
2024-10-15 2024-09-30 13F MESABI TR CO CTF BEN INT Stock 590672101 30,895 0 0.00 1 0.0587
2024-07-10 2024-06-30 13F MESABI TR CO CTF BEN INT Stock 590672101 30,895 14,225 85.33 1 0.0484
2024-04-05 2024-03-31 13F MESABI TR CO CTF BEN INT Stock 590672101 16,670 860 5.44 0 0.0277
2024-02-07 2023-12-31 13F MESABI TR CO CTF BEN INT Stock 590672101 15,810 -1,775 -10.09 0 0.0326
2023-11-03 2023-09-30 13F MESABI TR CO CTF BEN INT Stock 590672101 17,585 17,585 0 0.0387
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.